Calcvers
Pet Calorie Calculator
Pet Health
Generated
September 24, 2026
Daily energy needs
1059kcal/day
662 kcal RER × 1.6
Your inputs
- Pet
- Dog
- Weight
- 20 kg
- Life stage
- Neutered adult
Breakdown
- RER
- 662 kcal
- Per meal
- 1059 kcal
- Per kg
- 53 kcal
Energy split
| Item | Value |
|---|---|
| RER | 662 kcal |
| Activity | 397 kcal |
| Daily total | 1059 kcal |
What this means
Daily calories start from the resting energy requirement (RER ≈ 70 × body weight in kg raised to 0.75). This is the energy a pet burns at complete rest. Life stage multiplies it: neutered adults about 1.6×, intact adults 1.8×, weight loss 1.0×. The result is the daily calorie target your pet's food should supply.
Recommendations
- Weigh your pet monthly — calorie needs are set by weight, which changes with the diet.
- For weight loss, the target is a veterinary-guided plan; sudden cuts can cause problems, especially in cats.
- Re-check the number after neutering, pregnancy or illness, as the multiplier changes.
Watch out
- These are standard reference multipliers — real needs vary with metabolism, breed and environment.
- Hepatic lipidosis makes cats especially sensitive to rapid weight loss; never crash-diet a cat without a vet.